Abstract
In a recent paper [2] it was shown in examples that the covariant retarded Green’s functions in certain gauges for electromagnetism and linearized gravity can be used to reproduce field configurations correctly in spite of the spacelike nature of past infinity in de Sitter spacetime. In this paper we extend the work of Ref. [2] concerning the electromagnetic field and show that the covariant retarded Green’s function with an arbitrary value of the gauge parameter reproduces the electromagnetic field from two opposite charges at antipodal points of de Sitter spacetime.
- Received 24 July 2009
DOI:https://doi.org/10.1103/PhysRevD.80.107502
©2009 American Physical Society